Free tool · Works in your browser
Free caption length checker
Paste your caption. See right away if it fits each network.
- Characters
- 0
- Words
- 0
- Hashtags
- 0
Limits for 14 networks.
- X0 / 280. Fits.
- Bluesky0 / 300. Fits.
- Threads0 / 500. Fits.
- Mastodon0 / 500. Fits.
- Pinterest0 / 800. Fits.
- Google Business0 / 1,500. Fits.
- Discord0 / 2,000. Fits.
- Instagram0 / 2,200. Fits.
- TikTok0 / 2,200. Fits.
- LinkedIn0 / 3,000. Fits.
- YouTube0 / 5,000. Fits.
- Facebook0 / 8,000. Fits.
- Reddit0 / 10,000. Fits.
- Slack0 / 30,000. Fits.
How to use it
- Paste or type your caption in the box.
- Look at each network. A full bar means it is too long.
- Cut words until every network you post to fits.
Questions
Where do these limits come from?
They are the caption limits PRISM uses when it posts for you. Networks can change their limits, so check the network if a number looks off.
Why does X count my post in a different way?
X counts links and some emojis in its own way. Leave a little room if your post has links or lots of emojis.
Does this save my caption?
No. Your words stay in your browser. Nothing is sent to PRISM.
Can PRISM fix a caption that is too long?
Yes. In PRISM you can write a different caption for each network. If one is too long, press Make it fit with AI.
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